A more practical and accurate way to make estrus sows more suitable for timely mating is to grasp the traits of the sow after estrus, and to select breeding opportunities based on characterization. This can be summarized as “four look”. A look at the pussy: estrus sow pus from the …

The scale insects are Homoptera (Hymenoptera) insects, most of which have waxy secretions (ie, shells). Scale insects are the most common pests on flowers and fruit trees. They often cluster on branches, leaves, and fruits to absorb sap damage. In severe cases, they cause wilting of branch…

Peroxidase detection after primary cell culture

Reagents and equipment:
1. Peroxide storage solution: 30mmol / L hydrogen peroxide stored in T-bovine serum albumin (Tris-bovine serum albumin solution);
2. Sample buffer: 2 volumes of T-bovine serum albumin solution + 1 volume of 2%…

In spring, the temperature rises, germs begin to multiply, and the temperature difference between day and night is large. Moreover, after a long winter, the chickens are of weak constitution, so spring is the season of high incidence of chicken diseases. At this time, the physiological functio…